Patents by Inventor Karen Stoeffler

Karen Stoeffler has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20230383108
    Abstract: Cellulose particles treated with a bio-based surfactant can be compounded into a polymer composite having improved mechanical properties, such as tensile strength and/or tensile modulus. Treatment can be integrated into an industrial scale continuous cellulose particle production process, and the process provides one or more of reduced environmental impact, reduced energy consumption, reduced chemical consumption, reduced water consumption, reduced processing/operational cost, reduced capital investment, increased output, improved fiber dispersion in the polymer matrix and improved thermal degradation properties of the composite.
    Type: Application
    Filed: October 15, 2021
    Publication date: November 30, 2023
    Inventors: Hongbo LI, Minh Tan TON-THAT, Éric PATENAUDE, Karen STOEFFLER, Harshad PANDE, Shabnam SANAEI, Bruno MARCOCCIA
  • Publication number: 20230257885
    Abstract: The present application relates to methods of preparing a coated substrate and coated substrates which can be optionally prepared from such methods. The methods comprise depositing on the substrate a single abrasion resistant layer by magnetron sputtering or depositing on the substrate a dual layer comprising a first abrasion resistant layer deposited by magnetron sputtering and a second abrasion resistant layer deposited by plasma-enhanced chemical vapor deposition.
    Type: Application
    Filed: July 22, 2021
    Publication date: August 17, 2023
    Inventors: Dongfang Yang, Mihnea Ioan Ionescu, Minh Tan Ton-That, Karen Stoeffler